AlphaYouCD
Insider selling
Christopher D. Brown sold $170K of 908 Devices Inc. (MASS) stock
Christopher D. Brown, Dir of 908 Devices Inc. (MASS), sold 20,000 shares of MASS stock worth $170K, per an SEC Form 4 filed Aug 7, 2026.
The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.
The trade happened on Aug 5, 2026, 2 days before it was made public.
MASS has moved +32.9% since the trade date, from $8.41 to $11.18 (Sep 22, 2026 close).
- Traded
- Aug 5, 2026
- Disclosed
- Aug 7, 2026
- Filing delay
- 2 days
- Price since
- +32.9%
- Role
- Dir
- Source
- SEC Form 4
More MASS insider and Congress trades
From a public SEC Form 4, linked above. Not investment advice, and not a recommendation to buy or sell.